Hi this is my first project, I started with and ebay found transit damaged 1/24 rc tank and due to no glue on the joints had dissasembled in transit. And for the electronics i dicied upon a DFRobot MEGA, motor shield, and io expantion shield.

That got me so far as this was my first time using the arduino and in fact any microcontroller, with many nights spent trawling through code adding bump sensors, leds and an arm fasioned from foamex i hit a wall so i headed over to ebay and bought myself 2 ultrasonic sensors and a 16x2 lcd, I finally got to a stage that i was happy with then **** broken track, so i made a quick bodge (staples and superglue) it worked but it took adjusting the motor speed to counteract the drift, then i encountered "cellbots" and the "robots anywhere" system, time for a change whch i will be documenting, more on it at the end of the post. Anyway enough with the chat heres the code from it:

What we want to see:motor encoders (turret and tracks)various sensors2nd arduino to read sensor values and to offlload calculationsandroid phone for the remote video and control link!! dell streak laser targeting, with rangefinding and auto aim (distance compensation)deployable armsability to recharge remoteremote PC (brain) with dedicated software (mapping, vision, ect.)some huge destruction when it decides humans are its enemy

Videos can be uploaded to youtube.As for pictures, there are MANY picture hosts out there... first one that comes to mind is photobucket, but there are so many.. (note: I've never used photobucket myself, as I have my own webspace).

PS: code goes best in between [ code]your arduino sketch here[ /code] tags, this will make a nice block for us to view the code, as opposed to regular text which is sort of a pain to read (for code).

Likewise, photos can be put up on a hosting site like www.photobucket.com , and linked to the same way.

I'm still trying to find tome to go back to a tank-bot I've been trying to resurrect. (originally based on the original VEX platform.) Main problems, are time, work, time, finding all the parts again (misplaced the RC transmitter. ARGH!) getting a working sketch for the RC receiver (appears to be a simple serial signal.) time.. Did I forget to mention time?

ok see below for the link to some photos of my "Test Bed" i reassembled as my kind delivery driver decided to not use the doorbell and leaving a card saying he was going to re-deliver on monday. Thanks Parcelforce!

use the button to insert youtube movies, and I think picasa is blocking linking directly to the images...

[media]http://www.youtube.com/watch?v=a2YMYmYldQM[/media]But I got tired of the sound from it, and wanted a platform I could easier make new parts for, and put things on without using hot glue, so I ordered a new...[media]http://www.youtube.com/watch?v=m3pgGqTjFwo[/media]

This is as far as I've gotten on a resurrected VEX tank I made a few years ago. I'm trying to find what I did with the RC transmitter, as someone out on the net has found the pattern for the RC receiver, which should be easy enough to incorporate to the design.

In these photos, the AVR is a ATMEGA328, running just the positioning servo, and the stock VEX Ultrasonic range finder. (Yes, the PING))) example code will work with the VEX USRF.. Simply set one digital pin as the output (the USRF's Input) and one as Input (the USRF's output.), the code works the same. )

I'm trying to also add a simple line-follower (the three sensors on the front) to follow the white line around a running track, but might have problems.. (the rest of the track is a brick red.) so this might be scrapped form the idea. Otherwise, yes, that is a 7805 voltage regulator being used to power the servo off the 9V.. Still looking at a 7.2V battery from the old project. (already made the adapter.) Simply plug into the Arduino, hit reset, and let it run!

cool its nice to see I've stirred the bot builder in you.I have my new base and have been playing about for a few days using the transmitter and receiver that came with the tank, that was until me being careless had the battery jumper leads switched during testing, I only let the magic smoke escape from the RX ic

Anyway I have some photos I am just about to set a new flickr and youtube account so I'll get something posted.

Anybody know any good H-bridge designs using IRF3205 NPN MOSFETS, or cheap designs that will handle at least 20A just to be safe :-?